Some posts are shown twice in the WP Reader ( http://de.wordpress.com/#!/read/following ).
The effect is not new, I see it since weeks. It is not always reproducable. Not everytime, not with every blog, not with every posting of a blog.
The only system I noticed is, it happens remarkably often (but even here: not always) with posts from http://lieckfeldt.wordpress.com/ .
It happens only in the common view of Reader, showing all subscripted blogs. It does not happen, if the Reader is showing the posts of one blog only.
[with browsers: FF 18, FF 19, Opera 12]
The blog I need help with is nummervier.wordpress.com.